Advertising sign for vehicles



FIG. 1 is a top, front perspective view of an advertising sign for vehicles showing my new design;

FIG. 2 is a front elevation view thereof, the rear elevation view being a mirror image;

FIG. 3 is a right side elevation view thereof, the left elevation view being a mirror image;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof; and,

FIG. 6 is a cutaway close-up front, top, and left perspective view of the "crown" of the sign.

The broken lines are shown for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for an advertising sign for vehicles, as shown and described. 